* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light theme */
    --bg-color: #f5f1e8;
    --text-color: #3a3428;
    --accent-color: #e89b6f;
    --panel-bg: rgba(255, 250, 240, 0.95);
    --border-color: rgba(58, 52, 40, 0.15);
    --success-color: #8ab68a;
    --warning-color: #e8a56f;
    --hover-bg: rgba(232, 155, 111, 0.1);
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e8e8e8;
    --accent-color: #e89b6f;
    --panel-bg: rgba(30, 30, 30, 0.95);
    --border-color: rgba(255, 255, 255, 0.15);
    --success-color: #8ab68a;
    --warning-color: #e8a56f;
    --hover-bg: rgba(232, 155, 111, 0.15);
}

body {
    font-family: 'Space Mono', monospace;
    background: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.ui-hidden .hud,
body.ui-hidden #info-banner,
body.ui-hidden #settings-panel,
body.ui-hidden #gallery-view,
body.ui-hidden #inspector,
body.ui-hidden #outliner,
body.ui-hidden .asset-picker,
body.ui-hidden .naming-modal {
    display: none !important;
}

#app {
    width: 100%;
    height: 100%;
    position: relative;
}

#canvas-container {
    width: 100%;
    height: 100%;
}

canvas {
    display: block;
    outline: none;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 90%;
    max-width: 400px;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: 20px;
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 16px;
}

.loading-progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.loading-progress-fill {
    width: 0%;
    height: 100%;
    background-color: var(--accent-color);
    border-radius: 4px;
    transition: width 0.2s ease-out;
}

.loading-details {
    font-size: 11px;
    opacity: 0.6;
    height: 2em;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hidden {
    display: none !important;
}

.icon-btn {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text-color);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.icon-btn:hover:not(:disabled) {
    background: var(--hover-bg);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.icon-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}